https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40770
--- Comment #25 from 康 珊 ---
(In reply to rguent...@suse.de from comment #24)
> On September 22, 2020 1:14:48 PM GMT+02:00, kangshan0910 at hotmail dot com
> wrote:
> >https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40770
> >
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40770
--- Comment #23 from 康 珊 ---
It seems that gcc will use "_ZGVeN8vl8l8_sincos" which doesn't exit in libmvec.
/usr/bin/ld: /tmp/ccTYyEZM.o: in function `main':
/home/pnp/ks/test_sincos.c:38: undefined reference to `_ZGVeN8vl8l8_sincos'
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40770
--- Comment #21 from 康 珊 ---
(In reply to Jakub Jelinek from comment #15)
> OpenMP has a way to express this,
> #pragma omp declare simd notinbranch linear(y,z)
> double sincos (double x, double *y, double *z);
> As can be seen on -O2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40770
--- Comment #20 from 康 珊 ---
Created attachment 49255
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49255=edit
test source file
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40770
--- Comment #13 from 康 珊 ---
(In reply to Richard Biener from comment #12)
> *** Bug 97149 has been marked as a duplicate of this bug. ***
Will you look at this?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97149
康 珊 changed:
What|Removed |Added
Resolution|DUPLICATE |FIXED
--- Comment #3 from 康 珊 ---
(In reply to
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97149
--- Comment #1 from 康 珊 ---
Created attachment 49247
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49247=edit
test source code
Assignee: unassigned at gcc dot gnu.org
Reporter: kangshan0910 at hotmail dot com
Target Milestone: ---
My code pattern is:
for (unsigned int i = 0; i < loopCount; i++)
{
for (unsigned int j = i * dim; j < (i + 1) * dim; j++)
{
sincos(input_a
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94139
--- Comment #2 from 康 珊 ---
This is a benchmark from phoronix
(https://openbenchmarking.org/test/pts/build-gcc-1.1.2). The benchmark uses
gcc-8.2.0.
Assignee: unassigned at gcc dot gnu.org
Reporter: kangshan0910 at hotmail dot com
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org, marxin at
gcc dot gnu.org
Target Milestone: ---
Gcc8.2.0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #33 from 康 珊 ---
(In reply to Martin Liška from comment #32)
> I can confirm it works for me with:
>
> diff --git a/common.gypi b/common.gypi
> index 9502e92..3d8f04f 100644
> --- a/common.gypi
> +++ b/common.gypi
> @@ -195,8 +195,8
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #30 from 康 珊 ---
(In reply to Martin Liška from comment #29)
> > Thanks for your reminder. Currently I found there were 3 ways to solve the
> > issue.
> > 1.Remove “enable-lto” in configure and open “fno-strict-aliasing”.
> > 2.Add
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #28 from 康 珊 ---
(In reply to Martin Liška from comment #27)
> (In reply to 康 珊 from comment #26)
> > I found the previous build log is like "g++ -o
> > /builddir/build/BUILD/node-v10.15.3/out/Release/cctest -pthread -rdynamic
> >
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #26 from 康 珊 ---
I found the previous build log is like "g++ -o
/builddir/build/BUILD/node-v10.15.3/out/Release/cctest -pthread -rdynamic -m64
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #25 from 康 珊 ---
OK. Then I will remove "enable-lto" in configure and try "-O3" with
"-fno-strict-aliasing" to see whether it can solve the issue.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #23 from 康 珊 ---
(In reply to Martin Liška from comment #22)
> (In reply to 康 珊 from comment #21)
> > All of the experiments were did in according to the build steps I just gave
> > to you.
>
> I'm sorry, but I would like to know
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #21 from 康 珊 ---
All of the experiments were did in according to the build steps I just gave to
you.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #19 from 康 珊 ---
I tried the following experiments:
1)Tried "__attribute__((noinline)) uv_unref(uv_handle_t*)", it could solve the
issue.
2)Tried "__attribute__((noipa)) uv_unref(uv_handle_t*)", it could solve the
issue.
2)Tried
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #18 from 康 珊 ---
Sorry, actually I don't know the reason, and I failed to find any git comment
for that configuration. It is involved from 10.14.2 build.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #16 from 康 珊 ---
OK. Our latest release nodejs package build steps are:
export CFLAGS="$CFLAGS -O3 -falign-functions=32 -fno-math-errno
-fno-semantic-interposition -fno-trapping-math "
export CXXFLAGS="$CXXFLAGS -O3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #14 from 康 珊 ---
Yes, I built it with LDFLAGS="${LDFLAGS} -fno-lto". Moreover, I tried
"__attribute__((noipa)) uv_unref(uv_handle_t*);" and it could solve the issue.
So it may not be caused by the alias, right?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #12 from 康 珊 ---
Yes, I built it with LDFLAGS="${LDFLAGS} -fno-lto". Moreover, I tried
"__attribute__((noipa)) uv_unref(uv_handle_t*);" and it could solve the issue.
So it may not be caused by the alias, right?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #10 from 康 珊 ---
Hi Martin Liška, I tried to build it with "-O3 -fno-strict-aliasing
-falign-functions=32 -fno-math-errno -fno-semantic-interposition
-fno-trapping-math", but it still had the issue. Can "-fno-strict-aliasing"
work
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #9 from 康 珊 ---
That's great! Thank you very much for your support :)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #7 from 康 珊 ---
Thanks Martin Liška for your quick response. I'm sorry I'm not familiar with
unique_ptr neither. Do you mean it is caused by the "Node" source logic itself?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #2 from 康 珊 ---
Created attachment 46062
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46062=edit
octane benchmark part2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89893
--- Comment #1 from 康 珊 ---
Created attachment 46061
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46061=edit
octane benchmark part1
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